Gvam Loftslag and Average Veður
Loftslag of Gvam: average temperatures, rainfall and seasons month by month.
Loftslag in Gvam month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Mánuður | Avg high | Avg low | Rigningfall | Rating |
|---|---|---|---|---|
| janúar | 30° | 25° | 63 mm | ★★★★☆ |
| febrúar | 30° | 25° | 62 mm | ★★★★☆ |
| mars | 31° | 25° | 120 mm | ★★★★☆ |
| apríl | 31° | 25° | 126 mm | ★★★☆☆ |
| maí | 32° | 26° | 136 mm | ★★★☆☆ |
| júní | 32° | 26° | 220 mm | ★★★☆☆ |
| júlí | 31° | 25° | 421 mm | ★★☆☆☆ |
| ágúst | 31° | 25° | 334 mm | ★★☆☆☆ |
| september | 31° | 25° | 335 mm | ★★☆☆☆ |
| október | 30° | 25° | 374 mm | ★★☆☆☆ |
| nóvember | 31° | 26° | 140 mm | ★★★☆☆ |
| desember | 31° | 26° | 80 mm | ★★★★☆ |
Loftslag type: Tropical. Heimild: Open-Meteo archive (ERA5).
Recent extremes in Guam
Háttest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
Best time til visit Gvam
Go in janúar, febrúar and desember. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: júlí, ágúst and september - expect the least comfortable mix of heat, cold or rain.
What this means for Gvam
Today is about average for október. The forecast high of 31°C is in line með the 30°C typical for this month.
A 97% chance means rain is expected over most of the area. Plan indoor alternatives. Around 16 mm is forecast, which is enough til soak trails and slow traffic.
Vindhviður til 58 km/h will push high-sided vehicles on exposed roads and bridges. Wet roads are likely; braking distances roughly double in heavy rain.
Within 15 degrees of the equator, day length barely changes all year; seasons are defined by rain, not temperature.
Northern Hemisphere, so peak summer falls in júní til ágúst.
The gap between the warmest and coldest month averages 1°C - an unusually even climate through the year.
What til pack, what til skip
- Lightweight, light-coloured clothing and a refillable water bottle
- sun.glasses, a brimmed hat and SPF 30+
- A packable rain shell - 7 of the next 7 days carry a real chance of rain
- Insect repellent and quick-dry fabrics for humidity
- Avoid exposed ridgelines, small boats and rooftop viewpoints while gusts stay above 58 km/h.
- If your dates are flexible, avoid júlí, ágúst and september - historically the least comfortable months here.
Samantekt
Gvam er land í Eyjaálfa. Guam er land í Oceania með höfuðborg í Hagatna. Íbúafjöldinn er um 170.000. Höfuðborgin er Hagatna.
Núna er hitinn 30°C (85°F) in Gvam með skýjað. Hitinn finnst vera 32°C. Í dag er hitinn frá 25°C til 31°C. Líkur á úrkomu eru 97%. Sightseeing conditions score 5.8/10 - sæmilegt — skipuleggðu eftir veðri.
Besti tíminn til að heimsækja Gvam is janúar, febrúar and desember. Loftslagið er tropical. júlí, ágúst and september tend til be the least comfortable months. maí is the warmest month með average highs near 32°C, while mars is the coldest með lows near 25°C.
Í einföldu máli. Today is about average for október. The forecast high of 31°C is in line með the 30°C typical for this month. The best window til be outside is roughly 6 PM til 9 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Guam today at 7.6/10. Vindhviður til 58 km/h will push high-sided vehicles on exposed roads and bridges. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Guam
| Tegund | Land |
|---|---|
| Heimsálfa | Eyjaálfa |
| Heimsálfa | Eyjaálfa |
| Hnit | 13°26′39.5″N 144°47′37.3″E (13.4443, 144.7937) |
| Capital | Hagatna |
| Mannfjöldi | 170.000 |
| Area | 544 km² |
| ISO code | GU |
| ISO 3166-1 alpha-3 | GUM |
| Currency | US dollar (USD) |
| Languages | English, Chamorro |
| Calling code | +1-671 |
| Tímabelti | Pacific/Guam |
| Staðartími | 9:17 AM (UTC+10:00) |
| Best months | janúar, febrúar and desember |
| Loftslag | Tropical |
Veður map for Gvam
Animated model layers. Pick a layer til load it.
Animated layers by Vindury. For pin-level detail and nearby places, see the interactive map below.
Explore Gvam
Every topic we hold for this place, and the same topic for the places around it.
Loftslag for related places
Frequently asked questions
Where is Gvam?
Gvam er land í Eyjaálfa. Its coordinates are 13.4443, 144.7937. It lies in Eyjaálfa.
What is the weather like in Gvam núna?
It is currently 30°C (85°F) með skýjað. Raki is 71% and wind is 27 km/h.
When is the best time til visit Gvam?
janúar, febrúar and desember offer the most comfortable conditions in Gvam, which has a tropical climate. júlí, ágúst and september are usually the hardest months for outdoor plans.
What time zone is Gvam in?
Gvam observes Pacific/Guam (UTC+10:00). The local time is 9:17 AM.
How many people live in Gvam?
Gvam has a population of approximately 170.000.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (countries-v1) - coordinates, hierarchy and facts. |
|---|---|
| Spá and observations | Open-Meteo (ECMWF and national models). |
| Loftgæði and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Loftslag averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated október 6, 2026 at 9:17 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.





